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d16
2011 Oct 15
1
[LLVMdev] Constraints with Subregisters
Hello,
is there a way to formulate a constraint like this:
let Constraints = "${src:sub_even} != $dst" in { ... }
, that is, only if a subregister of $src != $dst then ...?
Perhaps this is entirely the wrong way anyway. I'm trying to implement
(s/z/any)ext & trunc from 32 to 64 bit integer on a TI C64x processor.
64 bit ints are always stored in two adjacent registers (not